FVXX22 KNES 291726 VOLCANIC ASH ADVISORY ISSUED: 2006MAY29/1726Z VAAC: WASHINGTON VOLCANO: ST. HELENS 1201-05 LOCATION: N4611 W12210 AREA: US-WASHINGTON SUMMIT ELEVATION: 8363 FT (2549 M) ADVISORY NUMBER: 2006/003 INFORMATION SOURCE: GOES-12. GFS WINDS. PILOT REPORT. CASCADES VOLCANO OBSERVATORY. ERUPTION DETAILS: ROCKFALL AT ABOUT 1610Z PRODUCED ONE TIME ASH PUFF OBS ASH DATE/TIME: 29/1630Z OBS ASH CLOUD: SFC/FL220 4NM WIDE LINE BETWEEN N4614 W12210 - N4617 W12209. ASH IS MOVING N 2-10 KNOTS. FCST ASH CLOUD +6H: 29/2230Z NO VA EXP. FCST ASH CLOUD +12H: 30/0430Z NO VA EXP. FCST ASH CLOUD +18H: 30/1030Z NO VA EXP. REMARKS: THE CASCADES VOLCANO OBSERVATORY REPORTED A ROCKFALL ACCOMPANIED BY ABOUT 2 MINUTES OF ACTIVITY THAT PRODUCED ASH. ASH IS SLOWLY DRIFTING TO THE NORTH AND ALREADY STARTING TO DISSIPATE. GROUND OBSERVERS AND SOME PILOT REPORTS SUGGEST ASH IS AT OR BELOW FL200 BUT A FEW PILOT REPORTS SUGGEST ASH TO FL240. ... NEXT ADVISORY: WILL BE ISSUED BY 2006MAY29/2330Z NNNN